Apparatus for raising water by compressed air.



No. 656,572. Patented Aug. 2!, I900;

J. PETERMANN. APPARATUS FOR RAISING WATER B Y COMPRESSED AIR. (Application filed Apr. 17, 1900. (No Model.)

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UNITED I STATES PATENT OFF C JULIUS PETERMANN, OF ORIMMITZSCHAU, GERMANY.

APPARATUS FOR RAISING WATER BY CO MPRE'SSED AIR.

SPECIFICATION forming part of Letters Patent No. 656,572, dated August 21,1900. Application filed April 17, 1900. Serial No. 13,269. (No model.)

To all whom it may concern.-

Be it known that I, JULIUS PETERMANN, civil engineer, a subject of the King of Saxony, residing at Crimmitzschau, Kingdom of Saxony, Germany, have invented a new and useful Improvement in Apparatus for Raising Water by Compressed Air, of which the following is a specification.

My invention relates to an improvement in apparatus for raising water by compressed air of the kind having but one raising-chamber.

The invention consists in the arrangement of a'combined valve for the inlet and outlet of air which is actuated by the compressed air contained in the supply-pipe in lieu of the kn own separated valves for the inlet and outlet of air, which are actuated by the water contained in the delivery-pipe. The new combined valve is set into the water-space proper of the apparatus. In consequence of the arrangement of the combined valve set into the water-space and being operated by the compressed air only a narrow place is rendered necessary for the use of the apparatus. Therefore the apparatus is particularly suitable for use as a borehole pump. I attain this object by the arrangement of the combined air inlet and outlet valve illustrated in the accompanying drawing, which shows a vertical section of the apparatus.

0. represents a tube-like casing surrounding an inner casing 11, provided with openings c at the under part, by which openings the two casings are in communication. The outer casing is provided with a socket d, having perforations d, and a water-inlet valve g, fitted on a bar g. The latter is connected at the under end with the socket d and bears at the upper end a valvecasing h. The latter casing contains a valve h, which remains in its open position when the float '5 rests upon it as to allow the compressed air to flow from pipe 10 through pipes w and y under the piston m of the combined air-inlet and outlet valve Z. This valve is arranged in a cylindrical extension of the casing 12, which also contains a valve 10, which is opened by the fioati when the latter reaches its upper position. The valve is when opened permits the outlet of the compressed air contained in the space between the piston m and the valve it through pipes 2 and q. The space between the airinlet Z and the air-outlet n communicates with the casing b by a branch 0. r represents a return-valve which is provided in the delivery-pipe e.

The operation of the apparatus set forth is as follows: The apparatus when dipped into water becomes filled by the valve 9 and at the same time the aircontained in the casing Z) escapes through branch 0, air-outlet n, and pipe q. The compressed air supplied by pipe 10 and pressing upon the disk Z will then force the combined valve down, which thereby opens the air-inl'et Z and closes the airoutlet n. Thus the compressed air is permitted to flow through branch 0 into the casingb and to force the water contained in this casing out through openings 0 into the space between the inner and outer casings, from which space'the water enters the deliverypipe 6. The float & sinking with the water in casing 27 opens by its own weight the valve h, whereupon compressed air from pipe 1; enters by means of pipes 00 and 3 the space below thepiston m and lifts the latter, thereby closing air-inletl and opening air-outlet 17.. Now the compressed air, which after having raised the water rests in the casing 17, may escape through branch 0, air-outlet n, and pipe q to the atmosphere. The apparatus now is ready for again filling with water. The water admitted to the casing 21 lifts the float 45 until it strikes the valve is and opens the same, so that the compressed air which was contained in the space below the piston m now may escape through branch s and pipe q. When this takes place, the piston 111. descends by its own weight, thereby closing the air-outlet n and opening the air-inlet Z. By this means the compressed air from tube 19 is again allowed to enter the casingW) through branch 0 and to raise the water.

What I claim as my invention, and desire to secure by Letters Patent, is-

In combination in an apparatus for raising water, a water-chamber, a'discharge-pipe for the water leading therefrom, air inlet and outlet pipes 10, q, a combined inlet and outlet valve Z- having a piston and controlling the passage of the air through both of said pipes, a second valve 7:; for controlling the position of the valve l, an air-pipe leading In witness whereof Ihave hereunto set my hand in presence of two witnesses.

JULIUS PETERMANN.

Witnesses:

ALVIS SIOBER, WOLDEMAR HAUPT. 

